Method for inhibition of oxygen corrosion in aqueous systems by

Compositions – Reductive bleachant – deoxidant – reductant – or generative – Deoxidant or oxygen scavenging

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25218828, 25238954, 252392, 252393, 252395, 422 12, 422 13, 422 16, 422 19, C02F 100, C09K 1500

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058303839

ABSTRACT:
A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems.

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